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valentina_108 [34]
2 years ago
11

Que es la familia de hidrógeno

Biology
1 answer:
Gennadij [26K]2 years ago
7 0

Answer:

Metales alcalinos

El grupo 1A (o IA) de la tabla periódica son los metales alcalinos: hidrógeno (H), litio (Li), sodio (Na), potasio (K), rubidio (Rb), cesio (Cs) y francio (Fr). . Estos son (excepto el hidrógeno) metales suaves, brillantes, de bajo punto de fusión y altamente reactivos, que se empañan cuando se exponen al aire.

Explanation:

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Explain how paleoclimatologists (scientists that study climate change) use fossils and other records to study climate change.
marysya [2.9K]

Answer:

paleoclimatologists use different sources of information from fossils in order to record past climate and environmental conditions (for example, tree rings or skeletons of coral reefs)

Explanation:

Paleoclimatology is the discipline that studies ancient climate and environmental conditions. Paleoclimatologists are researchers that analyze different sources of evidence to obtain accurate records of past climate conditions. In this regard, the fossil record has proven to be a useful tool to obtain such information. For example, the rings of fossilized trees are usually wider during warm and wet years, while these rings become thinner during cold and dry years. Moreover, geochemical records from the skeletons of fossil corals (composed of calcium carbonate) are good indicators of past climate conditions because coral growth is sensitive to small fluctuations in water temperature. Paleoclimatologists also use non-biological climate indicators (e.g., sediments and ice sheets) to reconstruct past climate and environmental conditions.

6 0
2 years ago
Which cell structures are found in plant cells, but not in animal cells?
Levart [38]

Answer:

The one I know is plant cell has no cell wall while animal cell have cell wall

8 0
3 years ago
Read 2 more answers
A bear has an ___________ that is inside its body. Its skeleton is made of bone and cartilage, not of ____________ like a grassh
vova2212 [387]
From what I can tell, The answer is either A or B. Mammals have what is called an Endoskeleton, which means that their skeletons are inside their bodies. A way to remember this is Exo- is similar to exit and when you exit something then you are going outside. Endo- sounds like into, which can relate to being on the inside. Insects have Exoskeletons, which are made from Chitin. Now Agonists are also called Prime Mover muscles, which means they are practically the same thing.
7 0
3 years ago
Which kingdoms include organisms that create cellular energy (ATP) through respiration? I. Archaebacteria II. Fungi III. Plantae
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Answer: D. I, II, III, IV, V, and VI

Explanation:

Oxygen is recquired for cellular respiration and break down nutrients like sugar to create ATP. Organisms from all kingdoms like Bacteria, Archea, Plants, Protists, animals and fungi can use cellular respireation.

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The Grand Canyon is made of sedimentary rock that contains fossils up to 1 billion years old. The most commonly found fossils in
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3 years ago
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